The Callaway speed regime golf Ball offers optimized aerodynamic performance for more distance for athletic swing speeds. A very soft urethane cover delivers Tour-level control and an incredibly soft feel. Superior spin separation regulates spin and control, increases golf ball speed, and maximizes distance. The balls have the best aerodynamic performance for players with swing speeds between 90mph and 105mph. The HEX pattern is engineered specifically to optimize lift and drag with a long, stable, penetrating golf ball flight that holds its line in the wind.